New Iron R.R. Bridge, Portage, N.Y. (side view.) by L E Walker https://www.rawpixel.com/image/14302462/new-iron-rr-bridge-portage-ny-side-view-walkerFree Image from public domain licenseA group of otters in an underground cave with a waterfall in the background. Etching by J.E. Ridinger. https://www.rawpixel.com/image/13978848/image-background-paper-cartoonFree Image from public domain licenseMerrimac House, Newburyport, Massachusetts by H P Macintosh https://www.rawpixel.com/image/14296599/merrimac-house-newburyport-massachusetts-macintoshFree Image from public domain licenseTwo men preparing and smoking opium. Gouache painting by an Indian painter. https://www.rawpixel.com/image/13958037/two-men-preparing-and-smoking-opium-gouache-painting-indian-painterFree Image from public domain licenseThe Labors of Hercules: Hercules Capture of the Cretan Bull by Gabriel Salmon https://www.rawpixel.com/image/8974824/the-labors-hercules-hercules-capture-the-cretan-bull-gabriel-salmonFree Image from public domain licenseBones and muscles of the back of the head and ears. Pencil and watercolour drawing by J.C. Whishaw, 1854. https://www.rawpixel.com/image/13967333/image-cartoon-art-watercolourFree Image from public domain licenseA plant, possibly a chrysanthemum: flowering stem. Watercolour. https://www.rawpixel.com/image/13957949/plant-possibly-chrysanthemum-flowering-stem-watercolourFree Image from public domain licenseThe arteries of the human body with a foetus in the womb. Watercolour by a Persian artist. https://www.rawpixel.com/image/13973585/image-cartoon-face-personFree Image from public domain licenseSt. Peter's, Rome. Innocenzo XII by Fil. Valle. by Stabilimento Fotografico https://www.rawpixel.com/image/14300433/st-peters-rome-innocenzo-xii-fil-valle-stabilimento-fotograficoFree Image from public domain licenseLarge carved figures on walls of ruins, men next to wall by Francis Frith https://www.rawpixel.com/image/14293507/large-carved-figures-walls-ruins-men-next-wall-francis-frithFree Image from public domain licenseA plant, possibly Celosia argentea: flowering stem with root. Watercolour. https://www.rawpixel.com/image/13968143/plant-possibly-celosia-argentea-flowering-stem-with-root-watercolourFree Image from public domain licenseJerusalem. View taken from the South Part of the City Wall, and Looking in a North-West Direction. by Francis Frith https://www.rawpixel.com/image/14290266/photo-image-art-public-domain-wallFree Image from public domain licenseThree Graces; height, 3,400 feet. by Gustavus A F Fagersteen https://www.rawpixel.com/image/14291107/three-graces-height-3400-feet-gustavus-fagersteenFree Image from public domain licenseStomach and duodenum after poisoning by a mixture of nitric and sulphuric acids https://www.rawpixel.com/image/14015347/stomach-and-duodenum-after-poisoning-mixture-nitric-and-sulphuric-acidsFree Image from public domain licenseUterus and gravid uterus from Burrowes, Modern Encyclopaedia https://www.rawpixel.com/image/14008749/uterus-and-gravid-uterus-from-burrowes-modern-encyclopaediaFree Image from public domain licenseAcute Atrophy of the Liver. Leucine and Tyrosine from the Secretions. https://www.rawpixel.com/image/14000353/acute-atrophy-the-liver-leucine-and-tyrosine-from-the-secretionsFree Image from public domain licenseLight House, Farallone [sic] Islands, Pacific Ocean. by Carleton Watkins https://www.rawpixel.com/image/14299914/light-house-farallone-sic-islands-pacific-ocean-carleton-watkinsFree Image from public domain licenseGiovanni Battista Morgagni. Line engraving by C. Orazio, 1762. https://www.rawpixel.com/image/13976004/giovanni-battista-morgagni-line-engraving-orazio-1762Free Image from public domain licenseSpar en loofboom (1819 - 1837) by anonymous and Gebroeders van Arum https://www.rawpixel.com/image/13764165/spar-loofboom-1819-1837-anonymous-and-gebroeders-van-arumFree Image from public domain licenseThe liberation of a manacled prisoner during the taking of the Bastille on the 14 July 1789. Line engraving with etching. https://www.rawpixel.com/image/13980882/image-cartoon-face-personFree Image from public domain licenseMannen nagajuban met inro en netsuke (1920 - 1940) by anonymous https://www.rawpixel.com/image/13748188/mannen-nagajuban-met-inro-netsuke-1920-1940-anonymousFree Image from public domain licenseA young man standing, serving a drink. Gouache painting with gold. https://www.rawpixel.com/image/13970703/young-man-standing-serving-drink-gouache-painting-with-goldFree Image from public domain licenseWapen van de familie Rathsamhausen (1500 - 1560) by Hans Baldung Grien https://www.rawpixel.com/image/13787260/wapen-van-familie-rathsamhausen-1500-1560-hans-baldung-grienFree Image from public domain licenseKapelle am Newski-Prospect, Inneres 1. [Ansichten von St. Petersburg.] by L Gothe https://www.rawpixel.com/image/14293525/photo-image-church-art-public-domainFree Image from public domain licenseHouse on top Mt. Kearsarge, North Conway, N.H. by Nathan W Pease https://www.rawpixel.com/image/14298248/house-top-mt-kearsarge-north-conway-nh-nathan-peaseFree Image from public domain licenseTien motieven (1684) by Claude Simonin, Claude Simonin and Claude Simonin https://www.rawpixel.com/image/13769686/tien-motieven-1684-claude-simonin-claude-simonin-and-claude-simoninFree Image from public domain licenseSic Semper Sicariis/ Reading the Death Warrant No. 2. by Alexander Gardner https://www.rawpixel.com/image/14286148/sic-semper-sicariis-reading-the-death-warrant-no-alexander-gardnerFree Image from public domain licensePeter Chamberlen. Line engraving by T. Trotter, 1794, after R. White. https://www.rawpixel.com/image/13999533/peter-chamberlen-line-engraving-trotter-1794-after-whiteFree Image from public domain licenseJohn Armstrong. Stipple engraving by W. Ridley after W. H. Brown. https://www.rawpixel.com/image/13991868/john-armstrong-stipple-engraving-ridley-after-brownFree Image from public domain licenseA man thought to be dead arising from a table in a laboratory and frightening the proprietor. Drawing. https://www.rawpixel.com/image/13989948/image-cartoon-person-artFree Image from public domain licenseA.C. Hollingsworth, the man who paints with light, paints Exodus ... A.C. Hollingsworth. https://www.rawpixel.com/image/8648530/image-art-vintage-public-domainFree Image from public domain licenseExtinct Geyser East Fork of the Yellowstone. by William Henry Jackson https://www.rawpixel.com/image/14293031/extinct-geyser-east-fork-the-yellowstone-william-henry-jacksonFree Image from public domain licenseThe Reconciliation, from Boswell's Tour of the Hebrides by Thomas Rowlandson https://www.rawpixel.com/image/8997937/the-reconciliation-from-boswells-tour-the-hebrides-thomas-rowlandsonFree Image from public domain licenseUnidentfied canyon with railroad tracks, cabins in distance by William Henry Jackson https://www.rawpixel.com/image/14291566/photo-image-art-public-domain-paintingFree Image from public domain licenseLetter Z (c. 1600 - c. 1699) by anonymous, anonymous and anonymous https://www.rawpixel.com/image/13756642/letter-c-1600-1699-anonymous-anonymous-and-anonymousFree Image from public domain licensePalace Hotel, S.F. Interior View. [first view] by Carleton Watkins https://www.rawpixel.com/image/14310519/palace-hotel-sf-interior-view-first-view-carleton-watkinsFree Image from public domain license